СРОЧНО!!!пожалуйста решение поэтапно)))

1) а.
$\sqrt{36 \times 256} = \sqrt{36} \times \sqrt{256} = \\ 6 \times 16 = 96$
б.
$\sqrt{144 \times 0.0001} = \sqrt{144} \times \sqrt{0.0001} = \\ 12 \times 0.01 = 0.12$
в.
$\sqrt{8 \times 98} = \sqrt{4 \times 2 \times 2 \times 49 } = \\ \sqrt{4 \times 4 \times 49} = \sqrt{4} \times \sqrt{4} \times \sqrt{49} = \\ 2 \times 2 \times 7 = 28$
г.
$\sqrt{50 \times 18 \times 7 \times 0.28} = \\ \sqrt{25 \times 2 \times 2 \times 9 \times 7 \times 7 \times 0.04} = \\ 5 \times 2 \times 3 \times 7 \times 0.2 = 42$
2. а.
$\sqrt{7} \times \sqrt{63} = \sqrt{7 \times 63 } = \\ \sqrt{7 \times 7 \times 9} = 7 \times 3 = 21$
б.
$= \sqrt{ \frac{1}{2} \times \frac{2}{3} \times \frac{3}{1} } = \sqrt{1} = 1$
в.
$\sqrt{5} \times \sqrt{80} = \sqrt{5 \times 80} = \sqrt{400} = \\ 20$